Marcellus Hartley: A Brief Memoir (1903) is a book written by Julia Ward Howe about the life and accomplishments of Marcellus Hartley. Hartley was a prominent businessman and philanthropist in the 19th century who made his fortune in the firearms industry. He was also a supporter of the Union during the Civil War and played a key role in the development of the New York State National Guard. The book provides a detailed account of Hartley's life, from...